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India's military steps up operational readiness on China border

India's military has increased operational readiness along the eastern Indian border with China, sources said, as neither side shows any sign of backing off from a face-off in a remote Himalayan region near their disputed frontier.

Indian and Chinese troops have been embroiled in the seven-week confrontation on the Doklam plateau, claimed by both China and India's ally, Bhutan.

The sources, who were briefed on the deployment, said they did not expect the tensions, involving about 300 soldiers on each side standing a few hundred feet apart, to escalate into a conflict between the nuclear-armed neighbours, who fought a brief but bloody border war in 1962.

But the military alert level had been raised as a matter of caution, two sources in New Delhi and in the eastern state of Sikkim told on the condition of anonymity because of the sensitivity of the matter.

The crisis began in June when a Chinese construction crew was found to be trying to extend a road in the Doklam region that both China and the mountainous nation of Bhutan claim as theirs.

India, which has special ties with Bhutan, sent its troops to stop the construction, igniting anger in Beijing which said New Delhi had no business to intervene, and demanded a unilateral troop withdrawal.

Prime Minister Narendra Modi's administration, though, has dug in its heels and said that the Chinese road activity in the region near the borders of India, Bhutan and China was a threat to the security of its own northeast region.

"The army has moved to a state that is called 'no war, no peace'," one of the sources said. Under the order issued to all troop formations in the eastern command a week ago, soldiers are supposed take up positions that are earmarked for them in the event of a war, the source said.

Each year, Indian troop formations deployed on the border go on such an "operational alert" usually in September and October. But this year the activity has been advanced in the eastern sector, the source in Sikkim, above which lies the area of the current standoff, said.

"Its out of caution. It has been done because of the situation," the source said. But the source stressed there was no additional force deployment and that the area was well defended.